Hooker, W.J.؛ Prain, D.؛ Stapf, O.؛ Bentham-Moxon Trust؛ Royal Horticultural Society (Great Britain)؛ Royal Botanic Gardens, Kew؛ Stanley Smith Horticultural Trust (1890). Curtis's Botanical Magazine. Reeve Brothers. ص. 7107. ISSN:0011-4073. مؤرشف من الأصل في 2020-01-25. اطلع عليه بتاريخ 2014-12-13.
Hooker, W.J.؛ Prain, D.؛ Stapf, O.؛ Bentham-Moxon Trust؛ Royal Horticultural Society (Great Britain)؛ Royal Botanic Gardens, Kew؛ Stanley Smith Horticultural Trust (1890). Curtis's Botanical Magazine. Reeve Brothers. ص. 7107. ISSN:0011-4073. مؤرشف من الأصل في 2020-01-25. اطلع عليه بتاريخ 2014-12-13.
Hooker, W.J.؛ Prain, D.؛ Stapf, O.؛ Bentham-Moxon Trust؛ Royal Horticultural Society (Great Britain)؛ Royal Botanic Gardens, Kew؛ Stanley Smith Horticultural Trust (1890). Curtis's Botanical Magazine. Reeve Brothers. ص. 7107. ISSN:0011-4073. مؤرشف من الأصل في 2020-01-25. اطلع عليه بتاريخ 2014-12-13.